Quantifying Ocular Surface Aberrations After Tear Film Interventions

Inclusion Criteria

• •1. Are at least 17 years of age and have full legal capacity to volunteer.
• •2. Have signed the information consent letter.
• •3. Are willing and able to follow instructions and maintain the appointment schedule.
• •4. Habitually wear spherical soft contact lenses (no multifocal lens, no toric lens wear or extended (overnight) wear).
• •5. Have a vertex-corrected refractive astigmatism of no more than 0.75D in each eye.
• •6. Achieve a best corrected visual acuity of 0.00 logMAR or better in each eye.
• •7. Agree to wear the study contact lenses for at least 6 hours.
• •8. Have clear corneas (e.g. no central scars).
• •9. Have no active ocular disease or inflammation.